The pace of discovery is going unbelievably fast.

Science has always been my preoccupation and when you think a breakthrough is possible, it is terribly exciting.

Ultimately, we'll help the people we discriminate against if we try to understand more about them; genetics will lead to a world where there is a sympathy for the underdog.

If scientists don't play God, who will?

Polls consistently show that the majority of Americans favour research using embryonic stem cells and yet politicians continue to pander to the outspoken religious minority that is hampering efforts to develop this potentially valuable technology.

There are many people of color who are very talented.

For all my life, America was the place to be. And we somehow continue to be the place where there are real opportunities to change the world for the better.